Door-operating mechanism



F. L. MORSE DOOR OPERATING MECHANISM Oct. 7, 1930.

4 Sheets-Sheet Filed Oct. 2, 1925 TORNEKS Oct. 7, 1930. F. MORSE 1,777,525

noon OPERATING macmmsm Filed Oct. 2, 1925 4 Sheets-Sheet 2 INvEN'miz- IPMW ATTORNEYQ Oct. 7, 1930. F. L. MORSE DQOR OPERATING MECHANI SM 4 Sheets-Sheet Filed Oct. 2, 19 25 I INVENTOR BY MW ATTORNEYS Oct. 7, 1930. F. L. MORSE DOOR OPERATING MECHANISM 4 Sheets-Sheet 4 Filed Oct 2, 1925 INVENTOR 5 56M ATTORNEYS V 401 Fig: 9 showsi the modificatiori of Fig. 8

for-the other door of thepairbeingthe same P T N OFFICE DO-Oiii-QPEBA'IING MEo rAN sM w Application filedffictobef'z 1925. Serial No. 603003. a

This inyentionwrelateswtodoor operating the upper door frame, 13 a two leaf door and mechanisms arid has for one of its primary {lthie operating mechanism in general. objects the provision of a s1mpleand compact The operating mechanism G comprises an mechanismufor openingand closlng doors, endless arcuate rackmemher 5 having a pair -5 conveniently operated andautomatic in its of radial? arms 6, 6Textending from the axis 55 action; .v i 7,01 the rack, said 1 r1emher5heii1g supported Another obj' ct of the invention resides in froinjthe .upp erfdo'or frame A aiadthe adja the provision of means arranged to auto-' cent structure 8 in any suitable mariner; matically s'hut 01 o SO CGO P jPiVoted about theaxisyl' is an arm' which" 10' t o oo -ro hes either its:"full openorclosed carries toward its free end the motor device 60 position, I a; ,1. B T indicated as a Whole by the" reference letter "Stillanother-objectof the invention is the D. The freefen'd of the arm9 is connected provision-"0151a idex ice of the character de- 1 to the folding l'ea'r' or secondme'mher 10013 the scribed in Whichjthe door hinges are not} two leaf door B. by means of the link 11" 7 l5 ubjected t BX G Si Ves'str ii i hi h which liiil; may be readily detached from the 65.

ja-mmirig of thedoors is avoid'edy i l arm-Qhy remoring the pin 12, this for the *How the-"foregoing-togethr Wit-h! such purpose of 'operatingthe door by hand 'inf other objects as hereinafter appear 01' dependentlyoi the operating device ifde-, are-incidentto my invention are realized is' sired t o'do' so, as Wouldhe the case,- for eX-' illustratediatheaccompanying drawings, l i th 'n t f f il e f th 1 5- 76: wherein? j y vice (1- 1 a g a yp s i taken It is pointed out that by reason of the op: thru the upper door frame and showing my erating mechanism 0 being mounted indedoor operating'me'chanism in elevation; nden tly of the door as above described, the

Fig. 2is a fragmehtaryview similar to operatiiig' thrusts will he transniitted to the 1 but g' i 'QPQ P t n; pivot? andconsequeiitly taken by the operaty ec ion k i11g clei icea11tl notbythe door hingefilO. the line 3 3 of Fig. 1; Furthermore by reason of the connection ig 'w g efl y" ection takeli 11 froih the operating device to the door being the l f gmade at a poiri t rem te from the door hinge Fi-gis WTWiringd -g a l g 1'0 that is to the second iiember 1O of the control c -i 'door,thehingeisfurther-relieved of strains.

it View 1 illIlStIiLll- The njgtojf dQVi ei D con pris es a, dyiven mbdificatlonof y invention; 7 "gear or pinion l3 drivihglyconnected to the- 351 Fig! 7 is a g ag showllethe motor 14 thru the medium of sma s ywormcontrol connections for the m d n aiid. Worm gear'ifiiaridfi respectively and shown i l L shaft18. a

Fig. 8 shows another modification of any i this fii nit issrpoijnted fl a inventioniland V hycuttingofithe current frorh the m otorfli' v the door Will be locked against moveme t, WIthithe t f p 1 t j I by Virtue of the Worm and wormi gearucon- In h l s 11 1 W? a f l 313 nectioihso that hen'the doorireaches either ra g, fi a i fl g app F its closed or open position itJis locked in such Ofa pan 0 two ea 0017s eimec positio nythe current to the motorheingcut hat h w It i bvi that j h only of? by means of automatic switches to he hereone two leaf door isusedonly oneoperatiii g d A y W1tch E 'X' mechanism would b fiecessamn a u located at some secluded point for shutt ng Referringlnow more particiilarly to Figs. oflithe power to the motor device, which 50 1 11 m i fil iv th w f celetter Adenotes swltch may be opened'after the door: has been 10c (czllosed by the control device thus locking the' cor.

The bed plate 19 of the motor device D is pivoted to the arm 9 at 20, by virtue of which the motor device is adapted to moveabout the pivot 20 for reasons now, appearing. Intermediate the inner rack portion 21 and the outer rack portion 22 is an upstanding arcuate rib 23 adapted to be engaged by the roller 24k mounted on the lower protruding end of the shaft 15. Thus it will be seen that as the gear 13 travels from one rack portion to the other the motor device isswung on its pivot 20 thus maintaining effective driving connection between the rack and gear at all points in its travel.

. Assuming the door to be closed as shown in Fig. 1 and that it is desired to open it to the position shown in Fig. 2, the conveniently located control switch-25 is thrown from'the position shown in Fig.5 to the right'making contact at 26 to complete a circuit from one side of the power line 27 thru wire 28, switch 29 which is in closed'po'sition, wire 30, motor I 14, and wire 31 back to the otherrside of the inturn carries the. door with it, 'thru' the medium of connections previously described. In this opening movement the leaf 10 folds on the leaf 10 of the door, the whole swinging on the hinge 10 As the door approaches its full open position (see Fig. 2) .the projecting stud 32 engages the switch 29 opening itand breaking the circuit thus stopping the motor and holding the door open until the switch 25 is operated for closing the door.

Closing of the door is accomplished by throwing the switch 25 to the left to make contact at 33 thus completing acircuit from one side of the line 27 thru wire 3 i switch 29?, which switch is closed when the door is 5 open, thruwire 35, motor 14 and wire 31 backto the line 27. This starts the motor and moves the door to closed position in a manner similar to that of opening the door. In the closing stroke however the pinion engages the outer portion22 of the rank 5 by 29 is opened by the stud 32, breaking the cir-- cuit and again stopping the motor. 'Hence it will beseen that the switches 29 and 29 are automatically ,set in proper operating positions. 'It isobvious that by employing a double rack a non-reversible motor may be used;

In order to prevent any jamming of the door when attempting to close it, I have provided a guide rail 36 having a curved portion 37 which tendsto mparate the leaves of wise being similar to thatjust described. A

reversing switch 25? (see Fig. 7) is then used in place of the switch 25 shown in Fig. 5.

, Figs. 8 and 9 show a modification in which I have employed a flexible rack 38 preferably a silent type or block chain. I have herev shown the motor device D mounted directly on the door leaf 10, having dispensed with'the arm'9. One end of the fleiiible rack 38 is secured to'the upper door frame at 39sand the other end is connected to the door at 40 thru the medium of the spring 41 and cable. 42 passing over the rollers 43, 43. By this arrangement it will be. seen that as the door opens the length of rack and cable between the point 39 and the roller 43 is increased, and this because ofthe relation of thepoint 40 to the pulley 43, thus compensating to a large degree for the arcuatetravel of the gear-13, the balance being taken .care of by the spring 41. As the door approachesits open position the increase inlength of the rack andjcable is taken out because the" relation'of the point 40 to the pulley 43 is then the, same as it was inqthe closed position of the door. Thus it will be seen that the rackv in effect is automatic'ally lengthenedand shortened to compensate for the arcuate travel of the gear 13; A swivel backing roller-4A: is provided to-keep the chain in contact with the rack.

While I have shown and described my clevice as applied .toatwo leaf door swinging inwardly it is to beunderstood that the device is also applicable to other types of doors. 7

No specific claim is made herein to the flexible rack or chain. device illustrated in Figures 8 and 9 of the drawings, as claims directed thereto have been made part of the subject matter-of a divisional application,

Serial No. 109,785, filed November 26, 1929.

1. A door operating mechanism compris ing in combination a pivoted arm, anendless arcuate rack having two arcuate rack surfaces each struck from a center coinciding with-the center of pivot of the arm, a motor device including a 'driven .gear carried by said arm, means adapted to engage said gear with one portion of the-rack to move the arm in one direction and with theother portion to move the arm in another direction and ,a connection between the arm and the door;

-2. AidOOI operating mechanism comprising, in combination, an endless arcuate rack, a motorvmovable along one portion of said rack to open the door and movable along the.

tion between the-motor device and the door.

4. A door operating mechanism comprising, in combination, an endlessarcuate rack,

a motor movable along one portion of said rack to open the door and movable along the other portion of said rack to close'the door,

together with means for stopping the motor at predetermined points in its travel.

5. A door operating mechanism, compris- 7 ing, in combination, an endless arcuate rack,

a motor device including a driven gear, and

a worm drive between the motor and said,

gear, means adapted to engage said gear withone portion of the rack to move the door 5 in one direction and with the other portion i to move the door in another direction, and

tween said arm and the door. i 7. A door operating mechan sm comprisa connection between the motor device and the door. i

6. A door operating. mechanism comprising in combination a pivoted arm, an arcuate rackhaving its rack surface struck from a center coinciding with the center of pivot ofthe arm, a motor carriedby said arm.

a driving'connectionbetween said motor and the rack whereby thearm is moved upon operation of the motor and a connection bemg; in combination a pivoted arm, an arcuate rack having its rack surface struck froma center coinciding with the center of pivot of the arm, a motor carried by sald arm, a

.driving' connection between said motor and the rack whereby the arm 1s moved upon operation of the motor and a connection be tween said arm and the door, together with means for stopping the arm at predetermined points in its travel;

8. An operatmg mechanism tor a two leai door comprising in combination a rack, a motor device having adriven gear engageable with said rack, and being adapted to move along said rack,'and a connection between said motor device and the door said connection being made to the secondleaf of Q the door.

9. A mechanically operatedldoor mechanism comprising a door, motor means mounted independently of the door but connected therewith, andmeans associated with i with.

the motor ,means for causing such motor means to move bOClllY when It 1s operated whereby the door is caused to move there,

10. A door operating device for hinged doors including a fixed support, an arm piv oted on saldesupport, a motor device carried by said arm, a connection betweensaid arm and the door, and means on said support engageableby the motor device for moving said arm in directions to open and close the door, said fixed support being adapted to take operating thrusts during operation of the device. M

In testimony whereofll have hereunto signed my name.

FRANK L. MORSE. 

